Fantastic guide, thanks for making this. One thing, I think you mean "BCM94352Z" for the wifi card (you forgot the 2
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Also, I would like to mention how I solved two issues:
1. Kernel Panic (Page Fault) during install
I installed an extra stick of RAM before, but I had to take it out for the installer to run. After it was done, I just popped it back in.
2. No battery % and no Audio
Remove audio kext for S/L/E, boot without caches, then rebuild caches with "sudo touch /System/Library/Extensions && sudo kextcache -u /"
Reinstall the kexts with kextbeast, rebuild caches, reboot, and you are good to go.